LDT Multiplier & C2D Overclocking

[Pepsiennis]

Excuse me if this has been discussed before, if it has just point me to the thread I missed. Thanks!

Now, my question is: What role does the LDT multiplier play in the 680i chipset, and what impact, if any, does adjusting the multiplier have on Core 2 Duo overclocking? Thanks all!

 

[Mansize_tissue]

what impact, if any, does adjusting the multiplier have on Core 2 Duo overclocking?

Looking at your CPU, the E6600, lowering the multiplier can help you reach higher FSB speeds (if you're motherboard can reach it), whilest maintaining the same overclock. Seeing as you've reduced your CPU multiplier, don't you already have a good idea of what impact it has on overclocking...

 

[luihed]

With my E6600 using 8x or 9x ( same clock ) gave me the same time in SuperPi.... I thought running a higher bus speed will make my system faster, I guess having to loosen up the timings evens it out.....

 

[Pepsiennis]

Looking at your CPU, the E6600, lowering the multiplier can help you reach higher FSB speeds (if you're motherboard can reach it), whilest maintaining the same overclock. Seeing as you've reduced your CPU multiplier, don't you already have a good idea of what impact it has on overclocking...

My question was in reference to the last BIOS setting under the Extreme Tweaker heading in the Asus Striker Extreme's BIOS, 'LDT Frequency'. So, although I may have mis-stated the terminology (for which I apologize), the question stands.

 

[Mansize_tissue]

My question was in reference to the last BIOS setting under the Extreme Tweaker heading in the Asus Striker Extreme's BIOS, 'LDT Frequency'. So, although I may have mis-stated the terminology (for which I apologize), the question stands.

Oh, sorry- I thought you were asking two questions; my mistake. Sorry i can't be of any more help.

 

[RayDaddy]

it controls the multiplier on your fsb I believe 1066 is 266 x 4 i think that is it. you amy be able to lower or raise it depending on your max overclock on the cpu. at least that is my understanding atthis point

 

[Pepsiennis]

RayDaddy, that's what I was thinking... along the line of the A64's HTTx5 default. The thing that got me thinking is that though the 680i is "Quad-pumped" (thus 266 x 4), the default for that BIOS entry is x5, though it offers adjustments up to x8. Now it's all well and good for someone to say 'Give it a shot', but there's great wisdom in the addage "Fore warned is fore armed". I've lowered it to x4 and got system errors while running Orthos. Mind you, that's a system error window, not an Orthos error. I was running 8x425 Linked & Synced at the time. I also tried x6, but got a reboot, which may well have been the 680i's L & S reboot event I've read about occuring around QDR 1600 and above. I'm hesitant to lower or raise the LDT Frequency further in either direction without better understanding its function. But, if any intrepid reader has a spare Striker Extreme they're willing to junk... Anyone? Beuhler?